It is a difficulty process if you need the
"Copy of organization registry license or organization ID". Then I need to contact with Korea local company to get this information. I am willing to help but it may take some time to get this information.
Where is the city you will apply for visa ? As far as I know, another speaker who is applying visa also asked the "organization ID" information, but after saw she has a visa to European or US, the embassy approved her visa without ask for "organization ID".
Also, there are many speakers in Beijing apply for tourist visa which is much easier.